Poff
Poff
1.4

0.0

Poff free download for Mac

Poff

1.4
16 May 2005

Shut down slave Mac when main Mac is shutdown.

Overview

IMPORTANT: As of Leopard, Poff is not maintained anymore. It may work on new versions of Mac OS X - or not.

Poff ("Ping and Off") is a system daemon that shuts down slave computers (which it is installed on) when the master computer is switched off (and therefore doesn't respond to pings anymore). It can be used to switch off numerous computers like in computer labs without having to walk up to every single lab computer.

Every slave computer sends one ping packet (9 bytes) per minute, so there's not a lot of network chatter. Temporary network outages have no impact, see the new and improved documentation embedded in the software package for details.

What's new in Poff

Version 1.4: Preserve preferences when updating, much more detailed documentation.

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1 Poff Reviews

Rate this app:

Anonymous
14 May 2005

Most helpful

if this is pinging the main machine all the time then it's going to cause a lot of chatter if you install it on several machines surely. Also what if the network goes down unexpectedly. Although if it works by the main machine sending the opposite of a wake-on-lan packet when it shuts down then that's okay
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Version 1.3
Anonymous
14 May 2005
if this is pinging the main machine all the time then it's going to cause a lot of chatter if you install it on several machines surely. Also what if the network goes down unexpectedly. Although if it works by the main machine sending the opposite of a wake-on-lan packet when it shuts down then that's okay
Like
Version 1.3
1 answer(s)
Anonymous
Anonymous
15 May 2005
There's not a lot of chatter at all. A Poff client sends one tiny ping per minute, you won't notice it even in the unlikely case your computer lab has thousands of clients. The master is considered offline if five consecutive pings fail, thus network outages of up to five minutes will not trigger the client shutdown process. Both the ping frequency and the number of ping failures necessary can be easily altered in case your network is very unreliable. I'll add these points to the documentation. PS: By using client issued pings instead of master issued wake-on-lan packets makes it possible to use even a network printer as master.
Like
Version 1.3